improvement: breaking change! api level code interface *removed*, contact me on discord if you want a way to avoid changing to resource-based interface, but otherwise
switch to the resource based one by specifying `define_for YourApp.YourApi` in the `code_interface` block of each resource.
improvement: use proper equality checking in places where we were using simple elixir equality checking
A deprecation warning will be shown at compile time to illustrate
a change from listing all of your resources in an api to listing
them in a registry and connecting that registry to the api
In an effort to improve compile times in general, and remove unnecessary
compile time dependencies, the code interface is not defined by default.
It is also now possible to define the code interface directly in the resource module,
via
```elixir
code_interface do
define_for ApiModule
end
```
If you need to reenable the code interface, simply add the following to your api module:
```elixir
resources do
define_interfaces? true
...
end
```
